I got a dx99v cb it turns on but its not transmitting or receiveing the needle barely moves.

I guess i will have to ask you the most obvious things. Do you have a suitable antenna connected? The needle moves on receive in most cases, not transmit. A watt meter will help you know if you are transmitting.

try blowing some canned air on the knob and switch to remove dust , also try a dash of electrical component spray on them , then see if it works.

Needle on the meter might have went out . Is it stuck in one spot? If it moves during receive and goes to zero when keyed it most likely the final.

Either your power supply is struggling to deliver enough current so when the speaker volume increases, the remaining power for the receiver decreases or the person transmitting has an over modulation problem.
If you turn your volume down and the needle stops bouncing, you may need to look at your power connections or have your radio serviced and set back up.

• Hi, I can help.

• The Diesel Electronics CB will work but you have to wire it as stated below.

1. #1 Shield and Black - Ground
2. #2 Yellow - Audio
3. #3 White - Transmit
4. #4 Red - Receive

• I don't know if anyone before you has re-pined that mic or not so if you just remove that little Philips screw at the mic connector and then give it a quarter turn you can slide the connector out and take a look and compare the wiring. The actual numbering for the pins on the Galaxy 4 pin mic connector is as indicated below in the diagram. As you look at the mic tip make sure the indent on the mic is as it is the diagram.

• If you have any comments please feel free to leave them here.
• Hope this helps and thank you for using FixYa.

Regards, Tony

Watch your meter and if the needle is moving but you can't hear anyone then try a different microphone. The wire for receive might be broken intermittently.

mike has wiring problems. Check for breaks in cord and where the plug goes into the unit. If not original mike then has incorrect wiring for the radio and will need to be changed for config

meter could be bad or needs to be cleaned, and sounds like you have a bad soilder in there.

did this problem occur while radio was being operated? or when it was being worked on? or a result of being worked on?

yup you fried the finals